v2: make v2 the main entry point, move v1 to src/v1/

- Move all v1 files (index, router, container-runner, db, ipc, types,
  logger, channels/registry, and all utilities) to src/v1/ as a
  fully self-contained archive with no shared dependencies
- Rename v2 files to remove -v2 suffix (index-v2.ts → index.ts, etc.)
- Update all imports across v2 source, tests, and setup files
- Migrate shared utilities (config, env, container-runtime, mount-security,
  timezone, group-folder) from pino logger to v2 log module
- Migrate setup/ files from logger to log with argument order swap
- Container agent-runner: move v1 entry to v1/, rename v2 to index.ts
- Update setup skill to offer all 13 v2 channels
- Install all Chat SDK adapter packages
- dist/index.js now runs v2; dist/v1/index.js runs v1

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/v1/db-migration.test.ts

@@ -0,0 +1,60 @@
+import Database from 'better-sqlite3';
+import fs from 'fs';
+import os from 'os';
+import path from 'path';
+import { describe, expect, it, vi } from 'vitest';
+
+describe('database migrations', () => {
+  it('defaults Telegram backfill chats to direct messages', async () => {
+    const repoRoot = process.cwd();
+    const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'nanoclaw-db-test-'));
+
+    try {
+      process.chdir(tempDir);
+      fs.mkdirSync(path.join(tempDir, 'store'), { recursive: true });
+
+      const dbPath = path.join(tempDir, 'store', 'messages.db');
+      const legacyDb = new Database(dbPath);
+      legacyDb.exec(`
+        CREATE TABLE chats (
+          jid TEXT PRIMARY KEY,
+          name TEXT,
+          last_message_time TEXT
+        );
+      `);
+      legacyDb
+        .prepare(`INSERT INTO chats (jid, name, last_message_time) VALUES (?, ?, ?)`)
+        .run('tg:12345', 'Telegram DM', '2024-01-01T00:00:00.000Z');
+      legacyDb
+        .prepare(`INSERT INTO chats (jid, name, last_message_time) VALUES (?, ?, ?)`)
+        .run('tg:-10012345', 'Telegram Group', '2024-01-01T00:00:01.000Z');
+      legacyDb
+        .prepare(`INSERT INTO chats (jid, name, last_message_time) VALUES (?, ?, ?)`)
+        .run('room@g.us', 'WhatsApp Group', '2024-01-01T00:00:02.000Z');
+      legacyDb.close();
+
+      vi.resetModules();
+      const { initDatabase, getAllChats, _closeDatabase } = await import('./db.js');
+
+      initDatabase();
+
+      const chats = getAllChats();
+      expect(chats.find((chat) => chat.jid === 'tg:12345')).toMatchObject({
+        channel: 'telegram',
+        is_group: 0,
+      });
+      expect(chats.find((chat) => chat.jid === 'tg:-10012345')).toMatchObject({
+        channel: 'telegram',
+        is_group: 0,
+      });
+      expect(chats.find((chat) => chat.jid === 'room@g.us')).toMatchObject({
+        channel: 'whatsapp',
+        is_group: 1,
+      });
+
+      _closeDatabase();
+    } finally {
+      process.chdir(repoRoot);
+    }
+  });
+});